In Portugal, Miguel buys a book about planets. The book costs €34.95. In England the same book costs £27.50. The exchange rate is £1 = €1.17. Calculate the difference in pounds (£) between the cost of the book in Portugal and England

The difference in the cost of book between Portugal and England is £2.37.

Step-by-step explanation:

Given,

Cost of book in Portugal = €34.95

Cost of book in England =£27.50

We need to find the difference in pounds (£) between for cost of the book in Portugal and England.

Solution,

Firstly we will find out the cost of book bought in Portugal in pounds.

We have also given that;

£1 = €1.17

Here we use the unitary method to find the cost in pounds.

Since €1.17 =£1

also given that the cost of book in England is £27.50.

Now we will find the difference, which is equal to cost of book in England minus cost of book in Portugal.

Difference =

Hence The difference in the cost of book between Portugal and England is £2.37.

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°